参数资料
型号: M41ST87WMX6TR
厂商: STMICROELECTRONICS
元件分类: 时钟/数据恢复及定时提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOX-28
文件页数: 36/48页
文件大小: 457K
代理商: M41ST87WMX6TR
M41ST87Y, M41ST87W
DC and AC parameters
5
DC and AC parameters
This section summarizes the operating and measurement conditions, as well as the DC and
AC characteristics of the device. The parameters in the following DC and AC Characteristic
tables are derived from tests performed under the measurement conditions listed in the
relevant tables. Designers should check that the operating conditions in their projects match
the measurement conditions when using the quoted parameters.
Table 15.
DC and AC measurement conditions
Note:
Output high Z is defined as the point where data is no longer driven.
Figure 26.
AC testing input/output waveforms
Note:
50 pF for M41ST87W.
Table 16.
Capacitance
Parameter
M41ST87Y
M41ST87W
VCC supply voltage
4.5 to 5.5 V
2.7 to 3.6 V
Ambient operating temperature
–40 to 85°C
Load capacitance (CL)
100 pF
50 pF
Input rise and fall times
≤ 50 ns
Input pulse voltages
0.2 to 0.8VCC
Input and output timing ref. voltages
0.3 to 0.7VCC
AI02568
0.8VCC
0.2VCC
0.7VCC
0.3VCC
Symbol
Parameter(1)(2)
1.
Effective capacitance measured with power supply at 5 V. Sampled only, not 100% tested.
2.
At 25°C, f = 1 MHz.
Min
Max
Unit
CIN
Input capacitance
7
pF
COUT
(3)
3.
Outputs are deselected.
Output capacitance
10
pF
tLP
Low-pass filter input time constant (SDA and SCL)
50
ns
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